En EspaŅol

Q. Who is Mr. Smarty Plants?

A: There are those who suspect Wildflower Center volunteers are the culpable and capable culprits. Yet, others think staff members play some, albeit small, role. You can torture us with your plant questions, but we will never reveal the Green Guru's secret identity.

Help us grow by giving to the Plant Database Fund or by becoming a member

Did you know you can access the Native Plant Information Network with your web-enabled smartphone?

Share

Ask Mr. Smarty Plants

Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.

Search Smarty Plants
    
 
See a list of all Smarty Plants questions
Can't find the answer in our existing FAQs, submit a question to Mr. Smarty Plants.
Need help with plant identification, visit the plant identification page.
 
rate this answer
Not Yet Rated

Monday - July 23, 2007

From: Ocean City, MD
Region: Mid-Atlantic
Topic: Invasive Plants
Title: Oxalis crassipes identification
Answered by: Joe Marcus

QUESTION:

I'm trying to identify a plant that has appeared in several containers on my balcony. The largest plant is about a foot tall, with triangular leaves, small white flowers with yellow centers, and has just grown green berries. I'm not sure if I should pull it up or fertilize it. Thank you so much for your help.

ANSWER:

Sometimes we can identify a plant from a description; often we cannot. The only plant that comes to mind for us is the South American native White wood sorrell, Oxalis crassipes. It is a common greenhouse and container weed. This species also has a pink-flowered form. If this is not the plant in your container, a picture or set of pictures will help. Here's how to send them to us:

1. Tell us where and when you found the plant and describe the site where it occurred.

2. Take several images including details of leaves, stems, flowers, fruit, and the overall plant.

3. Save images in JPEG format, with resolution set at 300 pixels per inch.

4. Send email with images attached to id@smartyplants.org. Put Plant Identification Request in the subject line of your email.

 

More Invasive Plants Questions

Need to know about the invasiveness of Datura wrightii.
May 17, 2010 - Dear Mr. Smarty Plants, I recently purchased a small Datura wrightii plant for my front garden. I've been researching it, since I know it is quite toxic, and couldn't find a good answer to one quest...
view the full question and answer

Negative and positive effects of invasive dandelions from Rama Ontario
January 12, 2012 - How do Dandelions have a negative impact of being a invasive and a Positive impact of being a invasive species ?
view the full question and answer

Will non-native and invasive Mexican petunias grow under oak trees from St. Augustine FL
March 24, 2013 - Will Mexican Petunias grow under an Oak tree?
view the full question and answer

Information about empress tree (Paulownia tomentosa)
March 07, 2008 - I have an Empress Tree, 3 yrs old, and the limbs grow straight out from the trunk about 2-3ft and then grow straight upward. When do they start to grow outward for a canopy??
view the full question and answer

Invasive introduced sandburs in Maui, Hawaii
November 12, 2008 - I live in Maui, Hawaii & I have a serious problem with Cenchrus spinifex and/or Coastal sandbur grass (weed!) it is everywhere, in my flower beds, in my gravel yardscape. Every time I pull it out it d...
view the full question and answer

Smarty Plants's Facebook profile Support the Wildflower Center by Donating Online or Becoming a Member today.

Mr. Smarty Plants wants you to be his Facebook friend. Click the Facebook icon to add yourself to Mr. Smarty Plants list of friends.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | SITEMAP | STAFF
© 2015 Lady Bird Johnson Wildflower Center